Novel nanofibers from blends of polylactic-co-glycolic acid (PLGA) and chitosan have been produced through an emulsion electrospinning process. The spinning solution employed polyvinyl alcohol (PVA) as the emulsifier. PVA was extracted electrospun nanofibers, resulting in a final scaffold consisting blend PLGA chitosan. fraction mat adjusted 0 to 33%. Analyses by scanning transmission electron microscopy show uniform with homogenous distribution their cross section. Infrared spectroscopy...

ABSTRACT Polyvinyl alcohol (PVA) has been widely used in electrospinning due to its ease of processing and ability aid the challenging polymers. However, it is expensive. This study explores use urea, a highly water‐soluble, nitrogen‐rich (46%) compound, as cost‐effective alternative PVA aqueous solutions. Electrospinning PVA‐urea nanofibers containing up 75% urea was successfully achieved, with electrical conductivity identified key factor controlling fiber diameter. The diameter...

Abstract Vanillin incorporated almond gum/polyvinyl alcohol (PVA) composite nanofibers were prepared using electrospinning. The release mechanisms and kinetics of vanillin evaluated in different aqueous food simulants (distilled water, 10% ethanol, 50% ethanol 3% acetic acid) simulated saliva. content media was determined by high‐performance liquid chromatography (HPLC). data fitted to first order, Kopcha, Korsmeyer‐Peppas Peppas‐Sahlin models evaluate kinetics. Release all mentioned...

Abstract The effects of fiber diameter and activation temperature on the pore characteristics polyacrylonitrile based activated carbon nanofibers are investigated. It was found that lower diameters as well higher temperatures lead to a weight loss, specific surface area total volume. nitrogen adsorption capacity is almost three times with 10 µm. As far size pores in concerned, it basically micropores dominate scene. Moreover, tailoring by adjusting plausible. Copyright © 2009 John Wiley...

Sericin is a proteinous substrate that envelops fibroin (silk) fiber, and its recovery provides significant economical social benefits. an antibacterial agent resists oxidation absorbs moisture UV light. In powder form, sericin has wide range of applications in food, cosmetics drug delivery. Asides from other techniques producing powder, such as precipitation spray drying, electrospraying can yield solid nanoparticles, particularly the submicron range. Here, we report production nanopowder...

The 2-chloroethyl ethyl sulfide (2-CEES) decontamination ability of MgO and Al2O3 nanoparticles embedded in activated carbon nanofibers is investigated. It was found that higher amounts metal oxide lead to 2-CEES. Moreover, 2-CEES increases with specific surface area the nanoparticles. Fourier transform infrared studies showed adsorb destroy through formation covalent/alkoxide bonds between reactive oxide/hydroxyl groups also weight loss cross sectional shrinkage nanofibers, occurring during...

This work reports on producing wool keratin nanoparticles through electrospraying. Wool is a natural biodegradable and biocompatible protein. Keratin powder has found application in hygiene, cosmetics, filtration, tissue engineering scaffolds, controlled drug release. Like other nano materials, the performance of submicron size range changes drastically. Electrospraying technique that capable nanosized, regular, spherical particles. To prepare electrospraying solution, was recovered from...

Abstract Surface modification by plasma treatment is widely used for textiles and polymeric materials. Plasma processes are environmentally friendly reduce chemicals energy consumption. This study reports the effect of cold, low‐pressure oxygen on wettability properties polypropylene (PP) nonwoven mats. The wetting were examined using contact angle, surface energy, diameters drop after 20 s treatment. It was found that had a significant PP fibers. ageing 90 days no wettability. also shown...

Weight reduction is an alkali treatment of polyethylene terephthalate (PET) fabric with the aim improving drape, handle and touch. The reaction aqueous alkaline such as sodium hydroxide on PET reported to be topochemical type meaning that chemical reaction, hydrolysis, limited fibre surface, does not affect core. Moreover, it also roughening surface a result excess oligomers after hydrolysis. New evidence obtained from small wide angle X-ray scattering, scattering atomic force microscopy in...

Starch consists of amylose and amylopectin. Properties such as being natural highly hygroscopic well biodegradability have opened a considerable range applications for amylose, amylopectin starch. The performance particles is dependent on their size which in turn determines the specific surface area. This work studies application electrospraying to fabricate maize starch its constituents: nanoparticles. study showed that technique capable producing nanopowder with an average particle around...